Mitsubishi Electric MELSEC-L LD75P User Manual page 138

(7) [Pr.35] S-curve ratio
Set the S-curve ratio (1 to 100%) for carrying out the S-curve acceleration/deceleration process.
The S-curve ratio indicates where to draw the acceleration/deceleration curve using the sine curve as shown
below.
136
A
B
B/2 B/2
sine curve
×
S-curve ratio = B/A 100%
(Example)
V
Positioning
speed
When S-curve ratio is 100%
V
Positioning
speed
b
a
When S-curve ratio is 70%
t
b/a = 0.7
t